super-key: Any key that has more columns than necessary to uniquely identify each row in the table is called a super-key (think of it as a super-set). candidate key: if the key has the minimum amount of columns necessary to uniquely identify each row…
Aabstract 抽象的abstract base class (ABC)抽象基类abstract class 抽象类abstraction 抽象.抽象物.抽象性access 存取.访问access function 访问函数access level访问级别account 账户action 动作activate 激活active 活动的actual parameter 实参adapter 适配器add-in 插件address 地址address space 地址空间ADO(ActiveX D…
[Slice] The return value of the it->key() and it->value() is a simple structure that contains a length and a pointer to an external byte array. Returning a Slice is a cheaper alternative to returning a std::string since we do not need to copy potent…
SpringDataMongoDB介绍(一)-入门 本文介绍如何应用SpringDataMongoDB操作实体和数据库,本文只介绍最基本的例子,复杂的例子在后面的文章中介绍. SpringDataMongoDB简介 SpringDataMongoDB是spring data的一个子项目,用来封装对MongoDB的操作,现在最新的版本是1.6.1.(截至2015年1月18日) The Spring Data MongoDB project provides integration with the…
JavaEE has some excellent built-in security mechanisms, but they don’t come close to covering all the threats that your applications will face. Many common attacks like Cross-Site Scripting (XSS), SQL Injection, Cross-Site Request Forgery (CSRF), an…